/*
 * Copyright 2008 FBK (http://www.fbk.eu/)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.fbk.it.hlt.jlsi.data;

import java.io.IOException;

/**
 * Writes in Sparse Binary Matrix File.
 * 
 * @author Claudio Giuliano
 * @version %I%, %G%
 * @since 1.0
 */
public interface MatrixFileWriter {

	/**
	 * Writes a matrix column in a file.
	 * 
	 * @param indexes
	 *            the column indexes.
	 * @param values
	 *            the column values.
	 */
	public void writeColumn(int[] indexes, float[] values) throws IOException;

	/**
	 * Closes this matrix file writer. A closed matrix file writer cannot
	 * perform input or output operations and cannot be reopened.
	 */
	public void close() throws IOException;

} // end interface MatrixFileWriter